Xiao Weng, on Dec 3 2007, 11:11 AM, said:
Ruggedness and longevity. Custom designed to be comfortable, hold the necessities for the adventurer, and be tough enough to take abuse in any environment.
I'm also told such backpacks can have a much, much higher price tag.
This, and then some.
You're opening up a can of worms, Wolverine... I've worked in the outdoors industry since I was 14 and have sat through at least three different clinics with sales reps from Arc'Teryx alone. I can be referred to as a "gear head": an utter dork when it comes to outdoor equipment, particularly climbing & backcountry gear.
But, let me give you the highlights of this particular line of packs (which came out this year, I believe, and is an upper tier line from an upper tier company). This line attaches all external parts by lamination rather than sewing. This means:
-Waterproof. Many packs use "waterproof" materials aim for "water resistance" but those darned seam needle-holes tend to leak water. This guy's got a roll-top and everything, like a giant sophisticated drybag. The seams that ARE there are taped with laminate.
-Much more design freedom. In a typical sewn pack, the suspension and features are limited because they generally need to be anchored into existing seams in the design for ease of production. When the parts are all just "glued" on, it allows for much more flexibility, and things like suspension systems can be built for optimal fit rather than with concern for production difficulties.
The selling point for me on this pack was the suspension. The shoulder straps and hipbelt are heat molded, which is typical of all of their products. The atypical feature is that the hipbelt & lumbar support are the same piece, and it is attached to the pack on a pivot point where they are usually immobile. This allows the hips to move up/down independent of the pack, which is generally fantastic, and particularly so on steep and uneven terrain, and for women. The load is much more stable this way, because the entire center of gravity does not need to shift when the legs/hips do.
Additionally, it's very durable material, has a lifetime warranty, is of average weight for its volume despite the materials (you can go a pound or maybe two lighter but there is a definite cost in comfort and durability), has minimal extraneous "features", and should hold about of week worth of stuff given that there are adequate water supplies wherever I'm going.
For comparison, the same size women's pack of a lower-end line from the same high-end company, retails for $375. My $200 pack was an EMS store-brand product and about as cheap as you can go for the size. $650 is pretty mindblowing, but I would not be buying it if I didn't get an equally mindblowing deal.